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Which term describes the chromosomal abnormality of having three copies of a single chromosome? A.haploidy B.diploidy C.trisomy D.tetrasomy
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Which term describes the chromosomal abnormality of having three copies of a single chromosome?

A.haploidy
B.diploidy
C.trisomy
D.tetrasomy

User Sinuhepop
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C. Trisomy

"Tri-" is Greek for "three"; people with trisomy have three copies of a particular chromosome in cells instead of the normal two copies.
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User Yahnoosh
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